What expression is equivalent to (4x^5+11)^2

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Can someone me with the property questions for 12 13 and 14 plz